npm_scripts

npm_scripts

# create package.json
npm init

# can define scripts in package.json
# pre and post runs before and after script
"scripts": {
  "pretest": "echo 'running pretest'",
  "test": "echo 'no test specified'",
  "posttest": "echo 'running posttest'",
  "start": "echo 'running start script'",
  "dupa:dd": "npm run start",
  "compile:first": "",
  "compile:second": "",
  "compile": "npm run compile:first && npm run compile:second",
  "build-js": "browserify client/entry.coffee | uglifyjs -mc > public/main.js"
}

# run scripts
npm run <script_name>

# list available npm scripts
npm run

# shorthand for running script called "start"
npm start

# another shorthands
npm stop
npm restart # if restart not defined runs stop and start

# avaliable commands listed under node_modules/.bin

# install packages
npm install --save-dev
npm i -D
npm install --save
npm i -S

# link - npm run-scripts boilerplate
https://gist.github.com/addyosmani/9f10c555e32a8d06ddb0

# "&&" - chaining commands, "|" - piping output, ">" - write output to file
# "&" - run concurrently (on linux), "START /B" on windows
# "-- " - pass through args eg.
npm test -- -w

# save installation log to log.txt, ddd is for logLevel silly - usefull for debuging
npm i -ddd 2>&1 | tee log.txt

# search package_name in dependencies tree
npm ls <package_name>

# usefull when running many scripts in one command
https://github.com/mysticatea/npm-run-all

# watch files
https://github.com/Qard/onchange
onchange 'app/**/*.js' 'test/**/*.js' -v -- npm test

# search env variables
$ npm run env | grep npm_package_version*
npm_package_version=2.2.0

# easy git hooks
https://github.com/typicode/husky

# for windows
https://github.com/kentcdodds/cross-env
https://github.com/elijahmanor/cross-var
https://github.com/isaacs/rimraf
https://github.com/sindresorhus/opn-cli

# npm task list
https://github.com/ruyadorno/ntl